Costa Rican Stone Ball
The Costa Rican Stone Ball that sits just north of the Joseph Smith Building comes from Diquis Delta, Costa Rica. Its uses are unknown, but it was perhaps an astronomical marker, a boundary marker or a burial memorial stone. It comes from the Paul Cheesman collection at BYU. It was carved between 200 B.C. and 600 A.D. (of granodiorite) by controlled fracturing, pecking and grinding.
The stone ball weighs nearly 2,000 pounds, but rocks similar to this one range in size from one ton to 16 tons, and can measure up to 8 feet in diameter. (DU)
A stone ball similar to the Costa Rican Stone Ball on BYU's campus